Finding the Fourth Proportional to 21,110,128.88, 29,131,781.02 and 11,942,771.63
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Solution
The fourth proportional to 21,110,128.88, 29,131,781.02 and 11,942,771.63 is: 16,480,913.49
Step by Step Solution
- Step 1: Write the proportion equation
21,110,128.88 : 29,131,781.02 = 11,942,771.63 : x - Step 2: Convert to fraction form
21,110,128.88/29,131,781.02 = 11,942,771.63/x - Step 3: Cross multiply
21,110,128.88x = 29,131,781.02 × 11,942,771.63 - Step 4: Simplify right side
21,110,128.88x = 347,914,207,721,512.62 - Step 5: Solve for x
x = 347,914,207,721,512.62/21,110,128.88 - Step 6: Final answer
x = 16,480,913.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.